<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Form submit</title>
</head>
<body>
    <h1>Form submit</h1>
    <form action="_child-page.html" target="_blank">
        <input name="input" value="input">
        <input id="submitBtn" type="submit" name="submit" value="submit">
    </form>
</body>
</html>
